US1599600A

US1599600A - Bearing support for machine tools

Info

Publication number: US1599600A
Application number: US30414A
Authority: US
Inventors: William O Vivarttas
Original assignee: Mattison Machine Works
Current assignee: Mattison Machine Works
Priority date: 1925-05-15
Filing date: 1925-05-15
Publication date: 1926-09-14
Anticipated expiration: 1943-09-14

Description

Sept.I 14 1926.

W. O. VIVARTTAS I BERINGSUPPORT FOR MACHINE TOOLS 1925 `2' sheets-sheer 1 Filed May l5,

Sept@ 14: 1926.

W. O. VEVARTTAS BEARING SUPPORT FOR MACHINE TOOLS 1925 2 Sheets-Sheet 2 Filed May l5 Patented Sept. 14, 1926.

UNITED STATES yPATENT OFFICE.

WILLIAM o. VIVARTTAS, F ROCIFORD, ILLINOIS, ASSIGN'OR To MATTISON MACHINE WORKS, OF RooKFoRn, ILLINOIS, A CORPORATION or ILLINOIS.

BEARING SUPPORT FORVMAGHINE TOOLS.

Application filed May 15, 19245'. SerialNo. 30,414.y

The invention pertains to machine tools, and more particularly to wood working machines such as moulders, planers, matchers, turning machines, and the like. In such t machines certain of the cutters are mounted on spindles journalled at opposite ends in bearings mounted on the machine frame. In order to permit of the removal and re placement of the critters, the bearing for one end of each spindle is detachably secured to the frame so as to be removable at will. Normally such detachable bearings rest upon ways provided on the machine frame, upon which ways the bearing is slid axially relative to the spindle in the operation of removing it from or replacing it upon the machine.

Heretofore, when the operator desired to remove the cutter head on a spindle, he

would, after unlocking or releasing the clamping means holding the detachable bearing in normal position, remove the bearing from its support on the frame so as to disengage it from the spindle, and place it in some convenient place, usually on the floor of the work room or shop some distance away from the machine. Now these` bearings are made of substantial size and weigh from iifty to seventy-five pounds.l Considerable labor is, therefore, involved in removing the bearing and replacing it upon the machine, and also the operation is a timeconsuming one. Moreover, the floor and other 'supporting surfaces are usually covhavel a tendency to cling to the underside of the bearing while the same is being replaced upon the machine; and frequently suoli ,refuse is carried to the machine frame and. becomes lodged between ythe bearing and its supporting ways. The presence of such refuse, while not apparent to the operator when he secures the head in place, nevertheless is suflioient to hold the bearing out of alinement, with the result that the spindle does not run true, causing achattering of the cutter' head against the work and consequently injuring or entirely spoiling the work.

The object of my invention is to provide a means for effectually supporting a detachable bearing for cutter spindles whereby the bearing may be moved from a normal operative position on the machine frame to ered with shavings and other refuse which f an inoperative positionaway from the spindle, and vice versa, with a minimum expenditure of time` and effort on the part of the operator, while eliminating danger of t shown a preferred construction of a ,sup-

porting means embodying my invention, but it is contemplated that variousrhanges in the construction and arrangement as herein set forth may be made by those skilled in the art without departing fromI the spirit andscope of the invention as expressed in the appended claims.

Figure l of the drawings is a fragmentary plan view partially diagrammatic in character, showing a horizontal critter head spindle with its removable bearing and the means which I have provided for` movably support` ing the bearing. y y y Fig. 2 is a similar view showing the movable bearing supported in inoperative position. f l

i Fig. 3 is a fragmentary end view of the bearing in normal position.

Fig. t is a fragmentary vertical sectional view showing more particularly-the construction of the bearing andthe manner of securing it in normal operative position with respect to the frame and the cutter spindle.

The frame of a machine, which is herein shown as a moulding machine, is generally designated by the numeral 7, and 8 indicates one of the horizontal cutter head spindles journalled at one endin a stationary bearving 9 and at its Otherin a detachable bearing 10. 11 indicates diagrammatically the cutter head.

The bearing 10 has upon its lower side a base portion 12 arrangedto slide upon ways 13 formed upon the upper side of the frame 7 and extending transversely of the frame or parallel to the axis of the spindle S. Normally the bearing is clamped in position upon the ways 13 by a clamping means gen-v erally designated bythe numeral 14, and the end of the spindle is clamped to a bearing sleeve 15 rotatable within the bearing proper by means of an expanding clamping device 16 of suitable construction. 17 1s a handle secured to the bearing and projecting from its outer end whereby when the clamping de fices let and 16 release the bearing from the spindle and the fram-e, the bearing may be withdrawn out of operative association therewith.

The means which I have provided for supporting the bearing 10 is such as to be capabie of permitting the bearing to move first axially out of engagement with the frame and spindle and thence to an out of the way position at one side of the spindle, such as will permit of the removal of the cutter head 11. This means is herein shown in the form of a swinging carrier whereby the bearing may swing on a vertical axis, and hence the direction of movement thereof is laterally or in a horizontal path away from the axis of the spindle.

The construction employed is relatively simple, comprising an upstanding` arm or bracket 1S having its lower end secured as by means of bolts 19 to the frame of the machine at one side of the bearing when in its normal position. This bracket arm forms in the present embodiment a part of the means for pivotally supporting a chip breaker arm 2O which is pivoted to the upper end of the bracket at 21. Formed on the upper end of the bracket 18, at its outer side, is a pair of vertically spaced lugs 22 and provided with scr-ew-threaded pivot centers 24 engaging in sockets 25 in the upper and low-er sides of a short arm or link 26, near one end thereof. Additional screws 2i serveto lock the pivot centers in position. l

The opposite end of said link is bifurcated to form lugs 2T and 28 with pivot centers 29 similar to the

lugs

22 and 23 and the centers 2i, the centers 29 being locked in adjusted position by screws 2451.r The c-enters 29 enter sockets 30 in the upper and lower sides of an enlargement or head 31 of a longer link or arm 32. Said arm 32 is shaped upon its under side to conform to the curved periphery of the bearing, and its free end has an apertured bearing 33 through which is entered a pivot bolt 34; screwthreaded at its lower end into the upper side of the bearing as indicated at 35. A spring washer 36 is interposed between the head of the bolt and the upper side of the bearing 33 for the purpose of slightly raising the bearing from its seat, thus eliminating friction between the bearing and its seat when either removingthe bearing from or replacing it in its operative position.

It will be apparent from an examination of Figs. 1 and 2 of the drawings that the arrangement of the supporting

links

26 and 32 with respect to the bracket 18 on the one hand and the bearing 10 on the other is such that they permit the bearing to be moved first axially out of engagement` with the frame and the spindleand thence swung laterally to a position at one side of the spindie in which the cutter head 11 may be readil removed from the spindle and replacec as desired.

By this relatively simple means, it will be observed, the operator may, with the expenditure of very little effort and with a minimum expenditure of time disengage the detachable bearing 10 from its spindle and swing it into an inoperative position. In restoring the bearing to its normal position, the fact that it is support-ed at the proper elevation materially facilitates its replacement upon the ways 13. In this connection, it is to be noted that the bearing is capable of a slight vertical adjustment by adjusting the screw-threaded pivot centers relative to the ways 13.

Furthermore, it will be apparent that by thus supporting the bearing, the danger that foreign mattei' might enter between the bearing and its ways unobserved by the operator is eliminated, thus ensuring that when the bearing is finally clamped in position upon the ways it will occupy a position in true alinement with the opposite bearing 9.

I claim as my invention:

1. In a moulder or the like the combination with a cutter spindle and a detachable bearing therefor, of means for supporting the bearing for movement axially of the spindle and then laterally to one side of the spindle, the arrangement being such that when the bearing is disengaged from the spindle by its axial movement relative thereto, it may be moved laterally with said supporting means so as to'perinit of removal of the cutter on the spindle.

2. In a moulder or the like, thecombination with a horizontal cutter spindle and a detachable bearing therefor, of means for swingably supporting the bearing formovement from a position in operative relation to the spindle to one side thereof and vice versa, said bearing being movable relative to the supporting means so that it may move axially into and out of operative relation to the spindle.

3. In a moulder or the like, the combination with a horizontal cutter spindle and a detachable bearing therefor, of means for swingably supporting the bearing for movement from a position in operative relation to the spindle to one side thereof and vice versa, said means comprising an upright stationary bracket mounted at one side of the spindle and a pair of pivotally connected links mounted on said bracket and providing a swinging carrier for said bearing.

11. In a moulder or the like, the combination of a detachable spindle bearing, ways on which said bearing is normally supported, a stationary support at one side of the spindle, and `means whereby said bearing is mounted on said support for movement axially of the spindle and also laterally toward and away from the axis of the Spindle.

5. In a machine of the character eet forth, the combination with a Spindle and a detachable bearing therefor, of a carrier for the bearing, said bearing being` movable relative to the carrier to permit the movement of the bearing axially of the spindle for disengagement therefrom, and the carrier being mounted for movement in a direction laterally away from the spindle whereby to Support the bearingr When thus disengaged from the spindle for movement into an outof-the-Way position.

6. In a machine of the character eet forth, the combination with a spindle and a de* tachable bearingV therefor, of a carrier for tively long" arm pivoted at one end to they rtion of a detachable spindle bearing, Ways on which said bearing' is normally support ed, a carrier for supporting` the bearing` on the machine frame for movement into and ont of operative relation to the spindle,`and means for adjusting thebearing in a vertical direction relative to said Ways.

k8. A moulder orthe like having' a main fra-me, a spindle having` bearings on the frame one of which is detachable from the spindle, a slideivay on the frame adapted to guide Said detachable bearing' for movement axially of the spindle, and means swingable on the frame for Supporting said detachable bearing` when disengaged from its slideway for movement into a position at one side of the spindle. n

In testimony whereof, I have hereunto affixed my signature.

WILLIAM O. VIVARTTAS.